﻿Rocks 
  of 
  the 
  St. 
  Gothard 
  Tunnel. 
  

  

  

  Distance 
  

  

  No. 
  

  

  from 
  N. 
  

  

  (Stapfif). 
  

  

  entrance 
  : 
  

  

  

  Metres. 
  

  

  1 
  

  

  

  

  6 
  

  

  304 
  

  

  8 
  

  

  540 
  

  

  14 
  

  

  885 
  

  

  16 
  

  

  957 
  

  

  19a... 
  

  

  1099-5 
  

  

  23 
  

  

  1279-5 
  

  

  26 
  

  

  1520 
  

  

  27 
  

  

  1600 
  

  

  28 
  

  

  1700 
  

  

  29 
  

  

  1900 
  _ 
  

  

  33a... 
  

  

  2116-8 
  

  

  366 
  ... 
  

  

  2278-9 
  

  

  42 
  

  

  2582 
  

  

  44 
  

  

  2605-1 
  

  

  47 
  

  

  2660-6 
  

  

  55 
  

  

  2765 
  8 
  

  

  61 
  

  

  29300 
  

  

  71 
  

  

  3443-6 
  

  

  75 
  

  

  3756-1 
  

  

  85 
  

  

  4038-8 
  

  

  90 
  

  

  4290-0 
  

  

  92 
  

  

  4525-8 
  

  

  95 
  

  

  4832-7 
  

  

  99 
  

  

  5250-0 
  

  

  107a... 
  

  

  5734-2 
  

  

  112 
  

  

  6075-4 
  

  

  114 
  

  

  6204-4 
  

  

  116 
  

  

  6662-4 
  

  

  119 
  

  

  6426-9 
  

  

  124 
  

  

  6959-9 
  

  

  1296... 
  

  

  7366-6 
  

  

  135 
  

  

  7695-3 
  

  

  174 
  

  

  6741-1 
  

  

  

  from 
  S. 
  

  

  

  entrance. 
  

  

  167 
  

  

  6081-2 
  

  

  166 
  

  

  5994-3 
  

  

  162 
  

  

  5507-2 
  

  

  158 
  

  

  5267-3 
  

  

  154 
  

  

  i 
  5002-4 
  

  

  145 
  

  

  1 
  4501-9 
  

  

  142 
  

  

  4078-2 
  

  

  132 
  

  

  3353-5 
  

  

  130 
  

  

  3272-4 
  

  

  121 
  d.. 
  

  

  3049-2 
  

  

  lUa.. 
  

  

  1 
  2792-8 
  

  

  109 
  

  

  2682-9 
  

  

  95 
  

  

  ' 
  2008-1 
  

  

  79 
  

  

  1528-3 
  

  

  70 
  

  

  . 
  10145 
  

  

  61 
  

  

  632-2 
  

  

  15 
  

  

  800 
  

  

  Description. 
  

  

  Finsteraarhorn 
  Massif, 
  

  

  Gneissic 
  granite 
  7-55 
  grams. 
  

  

  Gneissic 
  mica-schist, 
  talcose 
  . 
  9-09 
  

  

  Gneissic 
  granite 
  8-76 
  

  

  » 
  M 
  8-93 
  

  

  10-6 
  

  

  Grey 
  gneiss 
  120 
  

  

  Grey 
  gneissic 
  granite 
  8-38 
  

  

  Coarse 
  gneissic 
  granite 
  898 
  

  

  „ 
  100 
  

  

  „ 
  8-43 
  

  

  „ 
  8-27 
  

  

  Ut'sernmulde. 
  

  

  Ursern 
  gneiss 
  11*14 
  grams. 
  

  

  Quartz-schist 
  9-6 
  

  

  Black 
  histrous 
  slate 
  S'O 
  

  

  Grey 
  cipolin 
  9-47 
  

  

  Quartzitic 
  cipoliu 
  11-36 
  

  

  Black 
  lustrous 
  slate 
  10-66 
  

  

  Ursern 
  gneiss 
  9-1 
  

  

  Sericite-schist 
  8-0 
  

  

  Black 
  lustrous 
  schist 
  7-84 
  

  

  Quartz 
  mica-schist 
  8-16 
  

  

  Ursern 
  mica-gneiss 
  8-38 
  

  

  St. 
  GotJiard 
  Massif. 
  

  

  Gursch 
  en 
  mica-gneiss 
  8-53 
  grams. 
  

  

  Hornblende 
  rock 
  9-05 
  

  

  Schistose 
  serpentine 
  7-91 
  

  

  Quartzose 
  mica-gneiss 
  9-02 
  

  

  „ 
  10-0 
  

  

  Quartz-felspar 
  mica-gneiss 
  . 
  . 
  . 
  8-47 
  

  

  Gneiss 
  8-5 
  

  

  Hornblende 
  gneiss 
  9*02 
  

  

  Gneiss 
  834 
  

  

  Fine-grained 
  gneiss 
  9-51 
  

  

  Fine 
  mica-gneiss 
  9-17 
  

  

  Quartz-felspar 
  mica-gneiss 
  ... 
  8-67 
  

  

  Mica-gn 
  eiss 
  100 
  

  

  : 
  8-9 
  

  

  Mica-schist 
  gneiss 
  9-58 
  

  

  „ 
  ....; 
  90 
  

  

  Hornblende 
  mica-gneiss 
  8*76 
  

  

  iSella-gneiss 
  8-96 
  

  

  8-4 
  

  

  Quartz-gneiss 
  825 
  

  

  Mica-gneiss 
  873 
  

  

  Tessinmulde. 
  

  

  Hornblende-schist 
  8-64 
  grams. 
  

  

  Calcareous 
  mica-schist 
  9-02 
  

  

  Hornblende 
  mica-schist 
  7-99 
  

  

  Amphibole 
  garnet 
  mica-schist. 
  8-38 
  

  

  Quartz-schist 
  95 
  

  

  Amphibole 
  mica-schist 
  917 
  

  

  Qiiartz-mica-schist 
  88 
  

  

  Dolomite 
  866 
  

  

  Thorium 
  Kadiuiu 
  

  

  in 
  grams 
  in 
  grams 
  

  

  per 
  gram 
  ' 
  per 
  gram 
  

  

  xio-5. 
  X 
  10-12. 
  

  

  1-8 
  

   1-7 
  

   1-4 
  

   2-7 
  

   0-9 
  

   3-2 
  

   1-5 
  

   2-0 
  

   0-9 
  

   2-7 
  

   1-5 
  

  

  1-4 
  

   1-1 
  

   02 
  

   0-4 
  

   0-4 
  

   10 
  

   1-3 
  

   1-7 
  

   2-4 
  

   <0-3 
  

   0-5 
  

  

  0-9 
  

   0-2 
  

   2-1 
  

   1-5 
  

   0-5 
  

   1-3 
  

   2-7 
  

   0-8 
  

   1-1 
  

   0-7 
  

   1-3 
  

  

  1-3 
  

  

  0-9 
  

   2-3 
  

   0-1 
  

   1-5 
  

   1-7 
  

   1-3 
  

   0-7 
  

   :U-3 
  

   1-5 
  

  

  :0-3 
  

   0-5 
  

   0-6 
  

   1-0 
  

   :0-3 
  

   0-5 
  

   0-5 
  

   0-4 
  

  

  